{"id":"AZL-98400","summary":"CVE-2026-78002 affecting package rsyslog for versions less than 8.2308.0-7","details":"A flaw was found in rsyslog. An unauthenticated remote attacker can trigger a heap buffer overflow in the RainerScript `replace()` function by sending specially crafted syslog messages. This vulnerability arises from an incorrect buffer size calculation during string replacement, causing memory corruption. Successful exploitation can lead to a denial of service (DoS) for the affected system.","modified":"2026-11-08T05:33:04Z","published":"2026-08-27T17:20:29Z","upstream":["CVE-2026-78002"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-78002"}],"affected":[{"package":{"name":"rsyslog","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/rsyslog"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.2308.0-7"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-98400.json"}}],"schema_version":"1.9.2"}